Ground resonance analysis using a substructure modeling approachA convenient and versatile procedure for modeling and analyzing ground resonance phenomena is described and illustrated. A computer program is used which dynamically couples differential equations with nonlinear and time dependent coefficients. Each set of differential equations may represent a component such as a rotor, fuselage, landing gear, or a failed damper. Arbitrary combinations of such components may be formulated into a model of a system. When the coupled equations are formed, a procedure is executed which uses a Floquet analysis to determine the stability of the system. Illustrations of the use of the procedures along with the numerical examples are presented.
Document ID
19860026414
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chen, S.-Y.
Berman, A. (Kaman Aerospace Corp. Bloomfield, CT, United States)
Austin, E. E. (U.S. Army, Applied Technology Laboratory, Fort Eustis VA, United States)